The 414 area code covers Milwaukee in Wisconsin.
Area code 414 is in Wisconsin, on Central Time. In the 414 area, phone numbers are given out in Milwaukee County. It has been in service since 1947.
- Where
- Milwaukee County, Wisconsin
- Time zone
- Central Time
- In service since
- 1947, one of the original area codes
- Shares its area with
- No other area code
- Prefixes in use
- 552
- How to dial
- Local calls need all 10 digits: 414-555-0142.
Find out who called you from a 414 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (414) number is on today, use our free carrier lookup.
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Milwaukee holds every phone prefix in area code 414.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 552 prefixes in use shows where 414 numbers are actually given out.
- Milwaukee552 prefixes, 100%
Wisconsin Bell (AT&T) holds the most phone number prefixes in area code 414: 189 of 552.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 552 prefixes in use in 414 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| Wisconsin Bell (AT&T)AT&T's landline company | 189 | 34% |
| T-MobileMobile network | 54 | 10% |
| AT&T MobilityMobile network | 51 | 9% |
| UScellularMobile network | 47 | 9% |
| Level 3 (Lumen)Lumen's business and wholesale network | 21 | 4% |
| SpokPaging network | 18 | 3% |
| 23 other carriers | 172 | 31% |
62% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
414 has been split 2 times since 1947.
1947
414 is one of the original North American area codes.
1997
On July 26, 1997, 920 splits off and takes part of the 414 area.
1999
On September 25, 1999, 262 splits off and takes part of the 414 area.
A 414 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 414 are 262, 847 and 312.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
Wisconsin has 7 other area codes.
These are the questions people ask most about area code 414.
Where is area code 414?
414 covers Milwaukee in Wisconsin. In the 414 area, phone numbers are given out in Milwaukee County.
What state is area code 414 in?
Wisconsin. 414 is a Wisconsin area code on Central Time.
Which phone company owns area code 414?
No single phone company owns 414. NANPA's records show Wisconsin Bell (AT&T) holds the most 414 prefixes, 189 of 552, followed by T-Mobile and AT&T Mobility. Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 414 in?
414 is on Central Time.
When did area code 414 start?
414 is one of the original North American area codes, in service since 1947.
How do I dial a 414 number?
Local calls need all 10 digits: 414-555-0142.
Is 414 a toll-free number?
No. 414 is a regular area code for Milwaukee in Wisconsin, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 414?
The closest are 262 (Waukesha, Wisconsin), 847/224 (Northbrook, Illinois), 312/773/872 (Chicago, Illinois) and 630/331 (Roselle, Illinois), measured between the centres of each area.
Who called me from a 414 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 414 a scam?
414 is a real Wisconsin area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.